Utilizing Allenic Acids and Heterocyclic Diazo Compounds in the Synthesis of Polysubstituted Spirocyclic Butenolides and β-Methylidene 2-Furanones
作者:Ksenia Malkova、Ilya Tatarinov、Grigory Kantin、Dmitry Dar’in
DOI:10.1021/acs.joc.3c02474
日期:2024.2.16
heterocyclic diazo compounds into allenic acids followed by base-promoted cyclization. Utilizing various diazo heterocycles, including α-diazo homophthalimides, 3-diazo tetramic acids, and diazo oxindoles, diverse spirocyclic scaffolds were produced. The research revealed that the allenic acid substitution pattern is decisive for the product type, enabling extraordinary target compound switching between
在此,我们报告了一种通过Rh(II)催化杂环重氮化合物O-H插入联二烯酸,然后碱促进环化来组装螺环Δα ,β-丁烯内酯和β-亚甲基2-呋喃酮的新方法。利用各种重氮杂环,包括α-重氮高邻苯二甲酰亚胺、3-重氮四甲酸和重氮羟吲哚,制备了多种螺环支架。研究表明,联二烯酸取代模式对于产品类型具有决定性作用,能够在具有环外和环内 C=C 键的两种类型的螺环 2-呋喃酮之间进行非凡的目标化合物转换。